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RUFUS N, BRUCE, OESPRINGFIELD, MASSACHUSETTS, VASSIGrN OR TO HIM- SELF AND AMOS GALL, OF SAME PLAGE,-

Letters .Patent No. 74,982, dated Marc-h 3, 1868.

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T'O ALL WHOM IT MAY CNGERNz' I I v v Be it known that' I, RUVFUS N. BRUCE, of Springfield, Hampden county, Commonwealth of Massachusetts, have invented a. new and useful improved-Planer-Chuck; and I do hereby declare that the following is a full and clear description thereof, reference being had to th accompanyingl drawings, and to the letters ofrei'erence marked thereon. In the drawings- Figure 1 is a plan viewg-and Figure 2 a side view of lmy planer-chuck. l 4

This invention consists ina planer-chuck, so arranged that the stock can be planed'upon any angle of bevel and still be held squarely in between the jaws.

In construction, I form muy4 chuck as follows: The'bottom-plata A, of the vise, is hinged upon the bottom plate, B, of the chuck, by meansV of projections K and K upon thesame, the plate A being also guided hy the projections which extend parallel to each other across the plate B, being rigid or forming part of the plate, the plate A fitting in between them when shut down upon the plate B. The hinge i's made-at one side, at the ends of the projections, and the elevating-device at the other side, and in a line with the centrcof the plate A,

when said line isldrawn-parallel to the projections K K. The vise itselfl consistsof two jaws, being crosswise of plate A, one xed to said plate, the other movable thereon by means of' screws, set in a projection forming part of the vise, plate A, near its Vpiv'oted side," At the other side of the vise-plate A, und above the elevating'- device, is the projection forming the fixed jaw of the -vise. This jaw is atfright-a'ngles to the surfaceA of thev plate and the stock is held-between it undV the jaw, moving in slots in 'the bed-plate A, and worked by the set-screws, as shown and described. This point acting as a pivot, allows thevise-plate A to he raised at oneside, opposite to the hinge, so as to present the stock .to the cutter vat an angle, and the cutter working upon aihorizontal plane, now cuts a plane upon the stock, which is at an angle to thatwhich it would eut ifthe vise were dat down upon the plate B. i

The arrangement for adjusting thisvise at the proper angle consists of a loose screw, f, attached at one end, n t a, to the chuck-plate B, inysuchA a'manner that it has suiiicientplay to keep at right angles to .the vise,

fas the latter is elevated. This screw is turned by means of a square socket, b, in its head, and works in a nut,

VE,ol' a cylindrical forni, which is set in bearings in the part F of the vise, and crosses thc elongated slot c in the part F, so that the screwf'l'ias suiicient room for play.v This nut E turns easily in its bearings, so tlm-t norbin'd is produced npon the edges of the nut oiscrcw. Y

In order to give additional firmness to the, diiicrent -positions of the vise, and remove as much strain as possible from the screwf and nut E, a set-screw, g, is placed at oneiside of the visefframe, and clamps against the vise when it is desired to set't: In fig. 2is shown an avra..'lgcinentV for gauging the angle oi' bevel, which consists ofa scale, cut properly upon theI side of the jaw at z. The part c of the frame, or stationary part, is bevelled to ane'dge, so as to form Aa marker for this scale.

Theadvantag'es of this device are," that the stock can be squarely and securely arranged in the vise, and can then beA brought to any angle ot bevel, -while in the ordinary cases the stock has to be angled by ineens of 'wedges placed'on cach side of it, between the jaws. The scale upon the sides'gives a'fncility for obtaini'ngthe proper angle, which cannot be obtained otherwise.

Now, having described my invention, what I claim as new, and desire to secure by Letters Patent, is:- A planer-chuck in which the bottomplateA, of the vise, is hinged at one side to the bottom plate, B, of the chuck, between two 'projecting guides,-K`and K, and operated at lthe other side by an elevating-device, consisting of a screw, F, and loose nut E, the parts being combined and arranged together substantially in the manner described.

euros N. BRUCE.,

Witnesses:

EDWARD H. HYDE, CEAS. T. WORK. 

